Frictional contact is ok, if you are using Constant Amplitude non-Proportional loading or Time Step loading in Ansys nCode DesignLife because the final stress states are used. It is questionable when used with other loading types because the stress states are scaled.
I do not know why the embedded Ansys nCode DesignLife Add-On is not working for you. I recommend opening a SalesForce Case using the Customer Portal. A support engineer will assist you.
You need to discuss consulting with your Ansys account manager.
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